CatonCaster HD422 User Manual
Appendix A – Acronyms and Glossary
8VSB:
Vestigial sideband modulation with 8 discrete amplitude levels.
16VSB:
Vestigial sideband modulation with 16 discrete amplitude levels.
AAC:
Advanced Audio Coding
AC-3:
Also known as Dolby Digital
AES:
Audio Engineering Society
AFD:
Active Format Descriptor
ASI:
Asynchronous Serial Interface
ATSC:
Advanced Television Systems Committee
AV:
Audio Video
Bit Rate:
The rate at which the compressed bit stream is delivered from the channel to the input of a
decoder.
BNC:
British Naval Connector
BPS:
Bits per second.
CAM:
Conditional Access Module
CAT:
Conditional Access Table
CAT6:
Category 6 – Cable standard for gigabit Ethernet
CC:
Closed Caption
CI:
Common Interface
CoP:
Code of Practice
CRC:
Cyclic Redundancy Check
CVCT:
Cable Virtual Channel Table
dB:
Decibel
DDPlus:
Dolby Digital Plus
DHCP:
Dynamic Host Configuration Protocol
DPI:
Digital Program Insertion
DTVCC:
Digital Television Closed Captioning
DVB:
Digital Video Broadcasting
EBU:
European Broadcasting Union
EIA:
Electronic Industries Alliance
EIT:
Event Information Table
EPG:
Electronic Program Guide
ETM:
Extended Text Message
ETT:
Extended Text Table
Event:
An event is defined as a collection of elementary streams with a common time base, an associated
start time, and an associated end time.
FCC:
Federal Communications Commission
FEC:
Forward Error Correction
Field:
For an interlaced video signal, a “field” is the assembly of alternate lines of a frame. Therefore, an
interlaced frame is composed of two fields, a top field and a bottom field.
Frame:
A frame contains lines of spatial information of a video signal. For progressive video, these lines
contain samples starting from one time instant and continuing through successive lines to the bottom of the
frame. For interlaced video a frame consists of two fields, a top field and a bottom field. One of these fields
will commence one field later than the other.
HANC:
Horizontal Ancillary
HD:
High Definition
High level:
A range of allowed picture parameters defined by the MPEG-2 video coding specification which
corresponds to high definition television.
I/O:
Input/Output
IP:
Internet Protocol
Kbps:
1000 bit per second
LED:
Light Emitting Diode
LNB:
Low-Noise Block
MAC:
Medium Access Control
Main level:
A range of allowed picture parameters defined by the MPEG-2 video coding specification with
maximum resolution equivalent to ITU-R Recommendation 601.
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